• Earmor M13 M-LOK rail adapter kit laid out with mount blocks, wire arms, rail plates, screws and hex key
  • Black M13 M-LOK adapter block fitted to the side rail of a tan bump helmet, close-up
  • Tan bump helmet on a mannequin head with an Earmor ear cup mounted on the M13 M-LOK adapter
  • Close-up of the M13 M-LOK adapter and wire arm mounted on the side rail of a tan helmet
  • Front view of a tan helmet on a mannequin with a black Earmor headset mounted on M13 adapters
  • Side view of a tan helmet on a mannequin with a black Earmor ear cup on an M13 M-LOK adapter
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Earmor M13 M-LOK Helmet Rail Adapter Kit

Earmor M13 M-LOK Helmet Rail Adapter Kit

£24.95
£24.95
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DETAILS

SKU: 95887133
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For helmets built on M-LOK rather than ARC. The same job as the M11, cut for the M-LOK rail standard — and Earmor name the MTEK FLUX specifically.

M-LOK has spread from handguards onto helmets, and a growing number of shells now carry M-LOK side rails in place of the older ARC shoe. The two standards are not compatible, so a headset mount has to be made for one or the other.

The M13 is Earmor's M-LOK kit, and their own listings name the MTEK FLUX by name — which is convenient, because that is the shell in our PTS Flux bundle. It sits low against the shell, keeping the overall profile tight, which is worth more than it sounds when the same rails carry a torch or a counterweight.

Setup is tool-free and the cups rotate for stowing, so the headset can be pushed clear for a briefing and brought back without unclamping anything. Sold as a pair, left and right.

The fitment caveat that applies across this family applies here too: the catalogue files these kits under the M33, the shops write them up for the M31 and M32, and nothing published settles which is current. Compare your earcup mounting against the yoke before you commit, or send us a photograph and we will look.

Specifications

Specification Detail
Type M-LOK helmet rail adapter kit
Helmet compatibility M-LOK helmet rails; Earmor name the MTEK FLUX
Headset compatibility See the FAQ — Earmor's own sources disagree
Supplied as A pair, left and right
Adjustment Rotatable for stowing
Manufacturer part number M13
Brand Earmor

Frequently asked questions

How do I know if my helmet is M-LOK? M-LOK rails show a row of elongated slots cut directly into the rail. ARC rails have a continuous shoe with a locking notch. They look nothing alike once you have seen both.

Which headsets does it fit? Earmor's catalogue lists the M11, M12 and M13 against the M33; their shops describe the M13 as replacing the headband on an M31 or M32. Check your cup fitting rather than trusting either on its own.

Does it fit Peltor cups? No. The M13 for 3M Peltor is the version cut for those.

Why is no material or weight listed? Because nothing reliable is published for this exact part. One shop lists a shipping weight; no source states a material. We would rather leave the rows out.

⚠ M-LOK hardware needs checking after the first outing. M-LOK fasteners bed in. Re-check them after the first game day and then periodically — a mount working loose usually announces itself by the cup drooping mid-game.
💡 Titan Forge Airsoft tip: If your helmet has rails on both sides, mount the ear-pro opposite your torch. Balance matters more than symmetry. Full mount range in ear protection.